Configure Universal QSFP-DD and OSFP Transceivers

We have great news! For the past few months, we have been working on a solution to make your life just a little bit easier. We have engineered an add-on to make our “Swiss Army Knife” even more powerful!  

The Flexoptix FLEXSOX

The FLEXSOX is the first add-on for your to support the new generation of transceiver form factors, QSFP-DD and OSFP. With the FLEXSOX you will be able to configure all FLEXOPTIX Universal Transceivers up to 400G by yourself. This means it is now possible to re-configure our new form factor QSFP-DD and OSFP Universal Transceivers, all you need is a FLEXBOX V4 and the new FLEXSOX add-on. 

How to use it?

It´s very simple, just like our Slogan "Less Bullshit More Engineering", you just slide your FLEXBOX into the FLEXSOX and it works! There is no need for a separate power supply, the FLEXBOX-FLEXSOX Combo will take the power from your connected Laptop or Desktop.

The FLEXSOX will go live with full services on the 16th of February 2021.


  1. The FLEXSOX is only available for customers who have or plan to order the QSFP-DD or OSFP Universal Transceivers from us
  2. The FLEXSOX only works with the FLEXBOX V4 and FLEXOPTIX Universal Transceiver. To get your FLEXSOX for free, you need to order at least one QSFP-DD or OSFP transceiver.
Any questions? Just contact us! / +49 6151 62904-0


Miroslav Letak Miroslav Letak February 4, 2021 at 10:12

Hello FO team, we've got a new Flexsox from you. The V4 Flexbox has been inserted into, but no connection between the device and the add-on seems to be active - it doesn't detect QSFP-DD nor QSFP28 transceivers. Can you help us how to use this your brand new add-on ? :-) Thanks a lot in advance.



portia.rabonda portia.rabonda February 4, 2021 at 19:25

Hi Miroslav,

Thank you for your query, we are glad to hear that you have received your Flexsox and are eager to start using it! :)

The Flexsox will go live with full services on February 16th (please refer to the short information flyer provided with the package). In the interim, we wanted to make sure that all our customers receive their Flexsox before the launch date. Please continue to use the adapter until then.

We look forward to receiving your feedback for the Flexsox after February 16th.

Take care and stay safe.
Your Flexoptix Team


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